Sheet-metal roofing-package



f (No Model.)

B. W. PETERSON. f SHEET METAL ROOFING PACKAGE.

No. 458,501. Patented June 2, 1891.

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NrTE STATES PATENT OFFICE.

SHEET-METAL ROOFl NG-PACKAG E.

SPECIFICATION forming part of Letters Patent No. 453,501, dated June 2, 1891.

Application filed December 29, 1890- Serial No. 376,107- (No model.)

To all whom it may concern:

Be it known that I, BENJAMIN flPETER- SON, a citizen of the United States, residing at Vheeling, in the county of Ohio and State of West Virginia, have invented new and useful Improvements in Sheet-Metal Roofing- Packages, of which the following is a specification.

In my application for Letters Patent, Serial No. 372,913, filed November 38, 1890, I describe a cylindrical package of convoluted roofing metal having an internal receivingchamber for caps, anchors, and other articles, and closed at each end by a disk surrounded at its periphery by a metallic strip engaged with the convoluted roofing metal and provided at its longitudinal edges with parallel ribs, beads, or projections, between which the disk is arranged for the purpose of securely retaining it in position.

The object of my present invention is to improve the prior construction, to avoid forming each metallic strip with two parallel edge ribs or beads, and to provide a novel construc-' tion whereby an annular groove in the periphery of the disk is engaged by a projection or rib on a strip formed separate from the roofing metal and engaged with the latter when it is convoluted into a cylindrical package.

To accomplish these objects, my invention involves the features of construction, the combination or arrangement of devices, and the principles of operation hereinafter described and claimed, reference being made to the accompanying drawings, in which-- Figure 1 is a longitudinal sectional view of my improved cylindrical package of roofing metal. Fig. 2 is a detail perspective View of the metallic strip. Fig. 3 is a detail edge view of the annularly-grooved disk. Fig. 4: is a detail view showing the manner of applying the metal strip, and Fig. 5 is an end elevation of the cylindrical package of roofing metal.

In order to enable those skilled in the art to make and use my invention, I will now describe the same in detail, referring to the drawings, where- The numeral 1 indicates a cylindrical package of roofing metal, which is composed of a convoluted metallic sheet of the form and dimensions required for application to the roof of a building. The cylindrical package contains an internal chamber 2 for receiving the caps, anchors,'or other tools or articles required for use in properly placing the roofing metal in position. The chamber is closed at each end by a disk 3, of wood or other material suitable for the conditions required, and is provided with an annular groox e 4 in its periphery, with which engages a rib, bead, or other suitable projection 5, formed on the median line of a narrow strip of sheet metal 6. The rib, bead, or projection 5 is produced in the metallic strip at a suitable point between its longitudinal edges through the medium of dies, rolls, or any other devices suitable for the purpose. The strip 6 of metal is of such length that it will entirely surround the periphery of a disk 3 and leave a projecting end portion 7, Fig. 4, to be rolled or wound up with the sheet-metal roofing as the latter is convoluted into a cylindrical package. The inner end S of the rib, bead, or projection 5 is reduced in size and preferably vanishes into the metallic strip in such manner that the projecting end portion 7 of the strip is ribless or headless, and consequently I avoid the presence of any undue swelling or abrupt shoulders in rolling or winding the sheetmetal roofing into cylindrical form. The length of the rib, bead, or projection is substantially such as to extend completely or nearly round the periphery of the disk, and in the production of the cylindrical package constructed as shown in Fig. 1 the metallic strips are laid along opposite edges of the metallic roofing-sheet at one end portion thereof. The disks 8 are then placed in position upon the metallic strips, so that the annular grooves 4: engage the ribs or projections 5, after which the disks are rotated and the metallic roofing-sheet, with the metallic strips 6, are convoluted thereupon,by which means the ribs, beads, or projections of the respective metallic strips engage the annular grooves in the disks, and the end portions 7 of the metallic strips also engage the convoluted metallic roofing-sheet. By this means thernetallic strips are rigidly and firmly locked in position by the convoluted roofing metal and the disks are securely retained in position by the engagement of their annular grooves with the ribs, beads, or projections of the metallic strips.

I prefer to form the rib or bead as a continuous projection along the median line of the metallic strip; but obviously the rib or bead need not be continuous.

In practice I prefer to form the annular groove in each disk through the medium of suitable tools; but .I do not confine myself to this particular construction, for the reason that the ribs or beads could be forced into the periphery of the wooden disks during the process or method of convolut-ing the metallic but this is obj ectionable, in that a portion of the roofing metal is thereby injured, and this objection is entirely avoided by my present construction.

Having thus described my invention, what I claim is- 1. A cylindrical package of convoluted roofing metal, having an internal receiving-chamber closed at each "end by a peripherallygrooved disk, with which engages a projection or rib forming part of a strip engaged with and secured in place by the convoluted roofing metal, substantially as described.

2. A cylindrical package of convoluted roof-i 1ng metal, having an internal receiving-chamber and closed at each end by a disk, with which engages a projectionforming part of a separate or independent strip of metal engaged with and held in place by the convoluted roofing metal, substantially as described.

In testimony whereof I have hereunto set my hand and affixed my seal in presence of two subscribing witnesses.

BENJAlllIN W. PETERSON.

lVitnesses:

FRANK G. CALDWELL, JOHN N. DON-EL. 

